Hey Chi nice to meet you and welcome on board!
We actually get asked this question quite often. I’ll start with the earning Bitcoins part. It’s possible to earn Bitcoins online but since Bitcoin is just like any other form of money you’ll need to invest time and effort to do this.
I’ve compiled all of the different ways you can earn Bitcoin online in this article.
Regarding investing your Bitcoins – I can’t really give out any investment advice on the site. I can however tell you what you should avoid:

Any investment program that promises something that looks too good to be true (e.g. 1% interest every day, double your Bitcoins, etc.)